Mercurial > hg > xemacs-beta
annotate src/coding-system-slots.h @ 4766:32b358a240b0
Avoid calling Xft if not built in.
| author | Stephen J. Turnbull <stephen@xemacs.org> |
|---|---|
| date | Sat, 05 Dec 2009 01:02:33 +0900 |
| parents | 1d74a1d115ee |
| children | 308d34e9f07d |
| rev | line source |
|---|---|
| 1204 | 1 /* Definitions of marked slots in coding systems |
| 2 Copyright (C) 1991, 1995 Free Software Foundation, Inc. | |
| 3 Copyright (C) 1995 Sun Microsystems, Inc. | |
| 4 Copyright (C) 2000, 2001, 2002 Ben Wing. | |
| 5 | |
| 6 This file is part of XEmacs. | |
| 7 | |
| 8 XEmacs is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 10 Free Software Foundation; either version 2, or (at your option) any | |
| 11 later version. | |
| 12 | |
| 13 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 19 along with XEmacs; see the file COPYING. If not, write to | |
| 20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 21 Boston, MA 02111-1307, USA. */ | |
| 22 | |
| 23 /* Synched up with: ????. Split out of file-coding.h. */ | |
| 24 | |
| 25 /* We define the Lisp_Objects in the coding system structure in a separate | |
| 26 file because there are numerous places we want to iterate over them, | |
| 27 such as when defining them in the structure, initializing them, or | |
| 28 marking them. | |
| 29 | |
| 30 To use, define MARKED_SLOT before including this file. In the structure | |
| 31 definition, you also need to define CODING_SYSTEM_SLOT_DECLARATION. No | |
| 32 need to undefine either value; that happens automatically. */ | |
| 33 | |
| 34 #ifndef MARKED_SLOT_ARRAY | |
| 35 #ifdef CODING_SYSTEM_SLOT_DECLARATION | |
| 36 #define MARKED_SLOT_ARRAY(slot, size) MARKED_SLOT(slot[size]) | |
| 37 #else | |
| 38 #define MARKED_SLOT_ARRAY(slot, size) do { \ | |
| 39 int mslotidx; \ | |
| 40 for (mslotidx = 0; mslotidx < size; mslotidx++) \ | |
| 41 { \ | |
| 42 MARKED_SLOT (slot[mslotidx]) \ | |
| 43 } \ | |
| 44 } while (0); | |
| 45 #endif | |
| 46 #endif /* not MARKED_SLOT_ARRAY */ | |
| 47 | |
| 48 /* Name and description of this coding system. The description | |
| 49 should be suitable for a menu entry. */ | |
| 50 MARKED_SLOT (name) | |
| 51 MARKED_SLOT (description) | |
| 52 | |
| 53 /* Mnemonic string displayed in the modeline when this coding | |
| 54 system is active for a particular buffer. */ | |
| 55 MARKED_SLOT (mnemonic) | |
| 56 | |
| 57 /* Long documentation on the coding system. */ | |
| 58 MARKED_SLOT (documentation) | |
| 59 /* Functions to handle additional conversion after reading or before | |
| 60 writing. #### This mechanism should be replaced by the ability to | |
| 61 simply create new coding system types. */ | |
| 62 MARKED_SLOT (post_read_conversion) | |
| 63 MARKED_SLOT (pre_write_conversion) | |
| 64 | |
| 65 /* If this coding system is not of the correct type for text file | |
| 66 conversion (i.e. decodes byte->char), we wrap it with appropriate | |
| 67 char<->byte converters. This is created dynamically, when it's | |
| 68 needed, and cached here. */ | |
| 69 MARKED_SLOT (text_file_wrapper) | |
| 70 | |
| 71 /* ------------------------ junk to handle EOL ------------------------- | |
| 72 I had hoped that we could handle this without lots of special-case | |
| 73 code, but it appears not to be the case if we want to maintain | |
| 74 compatibility with the existing way. However, at least with the way | |
| 75 we do things now, we avoid EOL junk in most of the coding system | |
| 76 methods themselves, or in the decode/encode functions. The EOL | |
| 77 special-case code is limited to coding-system creation and to the | |
| 78 convert-eol and undecided coding system types. */ | |
| 79 | |
| 80 /* If this coding system wants autodetection of the EOL type, then at the | |
| 81 appropriate time we wrap this coding system with | |
| 82 convert-eol-autodetect. (We do NOT do this at creation time because | |
| 83 then we end up with multiple convert-eols wrapped into the final | |
| 84 result -- esp. with autodetection using `undecided' -- leading to a | |
| 85 big mess.) We cache the wrapped coding system here. */ | |
| 86 MARKED_SLOT (auto_eol_wrapper) | |
| 87 | |
| 88 /* Subsidiary coding systems that specify a particular type of EOL | |
| 89 marking, rather than autodetecting it. These will only be non-nil | |
| 90 if (eol_type == EOL_AUTODETECT). These are chains. */ | |
| 91 MARKED_SLOT_ARRAY (eol, 3) | |
| 92 /* If this coding system is a subsidiary, this element points back to its | |
| 93 parent. */ | |
| 94 MARKED_SLOT (subsidiary_parent) | |
| 95 | |
| 96 /* At decoding or encoding time, we use the following coding system, if | |
| 97 it exists, in place of the coding system object. This is how we | |
| 98 handle coding systems with EOL types of CRLF or CR. Formerly, we did | |
| 99 the canonicalization at creation time, returning a chain in place of | |
| 100 the original coding system; but that interferes with | |
| 101 `coding-system-property' and causes other complications. CANONICAL is | |
| 102 used when determining the end types of a coding system. | |
| 103 canonicalize-after-coding also consults CANONICAL (it has to, because | |
| 104 the data in the lstream is based on CANONICAL, not on the original | |
| 105 coding system). */ | |
| 106 MARKED_SLOT (canonical) | |
| 107 | |
|
4568
1d74a1d115ee
Add #'query-coding-region tests; do the work necessary to get them running.
Aidan Kehoe <kehoea@parhasard.net>
parents:
1204
diff
changeset
|
108 MARKED_SLOT (safe_charsets) |
|
1d74a1d115ee
Add #'query-coding-region tests; do the work necessary to get them running.
Aidan Kehoe <kehoea@parhasard.net>
parents:
1204
diff
changeset
|
109 |
|
1d74a1d115ee
Add #'query-coding-region tests; do the work necessary to get them running.
Aidan Kehoe <kehoea@parhasard.net>
parents:
1204
diff
changeset
|
110 MARKED_SLOT (safe_chars) |
|
1d74a1d115ee
Add #'query-coding-region tests; do the work necessary to get them running.
Aidan Kehoe <kehoea@parhasard.net>
parents:
1204
diff
changeset
|
111 |
| 1204 | 112 #undef MARKED_SLOT |
| 113 #undef MARKED_SLOT_ARRAY | |
| 114 #undef CODING_SYSTEM_SLOT_DECLARATION |